Complete the sentences with the infinitive form of the words in parentheses. 1. It's a good idea (drink) herbal tea when you have a sore throat. 2. It's helpful (go) to bed early when you're sick. 3. It's important (see) a dentist when you have a toothache. 4. It's a good idea (take) vitamin C when you have cold. 5. It's sometimes helpful (put) a heating pad on sore muscles. 6. It's important (eat) healthy food when you're not feeling well.